TW200943730A - Frequency adjusting apparatus and adjusting method thereof - Google Patents

Frequency adjusting apparatus and adjusting method thereof

Info

Publication number
TW200943730A
TW200943730A TW097112833A TW97112833A TW200943730A TW 200943730 A TW200943730 A TW 200943730A TW 097112833 A TW097112833 A TW 097112833A TW 97112833 A TW97112833 A TW 97112833A TW 200943730 A TW200943730 A TW 200943730A
Authority
TW
Taiwan
Prior art keywords
frequency
adjusting unit
signal
adjusting
adjust
Prior art date
Application number
TW097112833A
Other languages
Chinese (zh)
Other versions
TWI357216B (en
Inventor
Shan-Tsung Wu
Original Assignee
Mstar Semiconductor Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mstar Semiconductor Inc filed Critical Mstar Semiconductor Inc
Priority to TW097112833A priority Critical patent/TWI357216B/en
Priority to US12/404,862 priority patent/US8164688B2/en
Publication of TW200943730A publication Critical patent/TW200943730A/en
Application granted granted Critical
Publication of TWI357216B publication Critical patent/TWI357216B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

A frequency adjusting apparatus includes a first frequency-adjusting unit, a second frequency-adjusting unit and a controller. The first frequency-adjusting unit utilizes a first signal to adjust frequency of an input signal in order to make frequency of a first output signal fall into a first range. When the frequency of the first output signal is adjusted into the first range, the first frequency-adjusting unit temporarily stops changing the first signal. The second frequency-adjusting unit utilizes a second signal to adjust the frequency of the first output signal in order to adjust frequency of a second output signal into a second range. The controller controls the first frequency-adjusting unit and the second frequency-adjusting unit to adjust the first and the second signals according to the second signal.
TW097112833A 2008-04-09 2008-04-09 Frequency adjusting apparatus and adjusting method TWI357216B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW097112833A TWI357216B (en) 2008-04-09 2008-04-09 Frequency adjusting apparatus and adjusting method
US12/404,862 US8164688B2 (en) 2008-04-09 2009-03-16 Frequency adjusting apparatus and adjusting method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW097112833A TWI357216B (en) 2008-04-09 2008-04-09 Frequency adjusting apparatus and adjusting method

Publications (2)

Publication Number Publication Date
TW200943730A true TW200943730A (en) 2009-10-16
TWI357216B TWI357216B (en) 2012-01-21

Family

ID=41163686

Family Applications (1)

Application Number Title Priority Date Filing Date
TW097112833A TWI357216B (en) 2008-04-09 2008-04-09 Frequency adjusting apparatus and adjusting method

Country Status (2)

Country Link
US (1) US8164688B2 (en)
TW (1) TWI357216B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8776418B1 (en) * 2010-09-30 2014-07-15 Fitbit, Inc. Interchangeable cases for biometric monitoring devices
US8873682B2 (en) * 2012-09-28 2014-10-28 Broadcom Corporation Hybrid AFC using DCXO and RF PLL
US10411351B2 (en) * 2015-03-23 2019-09-10 Nec Corporation Antenna and wireless communication device
TWI678695B (en) * 2018-09-14 2019-12-01 瑞鼎科技股份有限公司 Method for dynamic frequency compensation and dynamic frequency compensation system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005207941A (en) * 2004-01-23 2005-08-04 Seiko Epson Corp Position-measuring apparatus, mobile terminal and position-measuring method and program
US8570446B2 (en) * 2007-03-14 2013-10-29 Chris Ouslis Method and apparatus for processing a signal with a coarsely positioned IF frequency

Also Published As

Publication number Publication date
US20090256971A1 (en) 2009-10-15
TWI357216B (en) 2012-01-21
US8164688B2 (en) 2012-04-24

Similar Documents

Publication Publication Date Title
DK2442590T3 (en) Method of reducing feedback in hearing aids
EP2221804A3 (en) Noise reduction apparatus
EP2127074A4 (en) Audio reproduction method and apparatus with auto volume control function
EP2375785A3 (en) Stability improvements in hearing aids
WO2012057579A3 (en) Method and apparatus for adjusting sound reference signal transmission power
WO2007092195A3 (en) Power amplifier controller circuit
TW200605706A (en) Sound control system and method
WO2010151466A3 (en) Method and system for controlling radio frequency power
EP2353330A4 (en) System and method for power saving via context based communication
WO2010108924A3 (en) Method and circuit for signal transmission via a current loop
EP2611029A3 (en) Power distortion-based servo control systems for frequency tuning Rf power sources
IN2014CN03504A (en)
MX2011010637A (en) Methods and apparatus to limit a change of a drive value in an electro-pneumatic controller.
WO2012151313A3 (en) Apparatus and method to hold pll output frequency when input clock is lost
EP2219371A3 (en) Volume correction device, volume correction method, volume correction program, and electronic equipment
WO2008085420A3 (en) Automatic frequency calibration
MX2012004675A (en) Method and apparatus for dynamically adjusting volume.
TW200739308A (en) A current source apparatus for reducing interference with noise
WO2012138509A3 (en) Techniques for reducing duty cycle distortion in periodic signals
EP2264889A3 (en) Method and apparatus for controlling power supply of audio amplifier
DK1850635T3 (en) Timed setting of a hearing aid device and similar method
TW200943730A (en) Frequency adjusting apparatus and adjusting method thereof
TW200705787A (en) Power supply controller and method therefor
WO2005074129A3 (en) Automatic audio signal dynamic range adjustment
MX2009009599A (en) A transmit power control module and associated method for transmit power configuration.

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees